You can put them at any place.You can easily get the security cameras from the steadfast web source.
They are also available in disguised forms, such as within fire alarms, and without wires attached.You may want a camera with a housing color that matches or at least blends in with the decor of the room it will be installed in.
DISCLAIMER: DMOZing.com is not affiliated in any way, shape, or form with DMOZ, AOL, Netscape, their management, entities or their official websites. Links to external websites on this website does not constitute endorsement.